The other musician is Peter Buffett, son of the internationally famous investor Warren Buffett, and now the co-chair of a new foundation initially funded by a gift from his father. (Two weeks ago, he teamed with Nikefor a $100 million investment in the "Girl Effect.")

Today, Akon and Buffett announced the start of a "musical collaboration" and a new social action website, IsThereSomethingICanDo.com.

The collaboration is a new version of Buffett's song Anything from his Staring At the SunCD which was released last summer. The track has been remixed by Akon, who also added his own vocals to Peter's original recording. The result is available as a free download at the new site.

According to a news release, the social portal "hopes to answer the question 'Is there something I can do?' posed within the song. It offers "practical ways to get involved in affecting positive change" and allows users to "learn and share informational about their experiences with giving back."

Buffett first wrote the song after visiting Liberia and Sierra Leone. Using material he shot himself, he also created this video .. which caught Akon's attention and prompted him to reach out to Buffett.

Buffett calls the song a "global call to action" and says he was honored and surprised when Akon answered that call. Surprised, perhaps, because Buffett didn't know anything about the popular musician who has sold eight million records.

Akon was surprised, too. "I didn't know who Peter was when we met, and he didn't know anything about me. That's the thing that makes our work together genuine: It's based simply on our desire to encourage people to do something."